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3 years ago

Can someone please help me with this proof?!

Mathematics

1 answer:

Elza [17]3 years ago

4 0

Answer:

because AC and BD bis => AX = XC; BX = XD

ΔAXD ≅ ΔCXB (SAS) because: AX = CX

DX = BX

m∠AXD = m∠BXC ( 2 opposing angles)

because ΔAXD ≅ ΔCXB (SAS)

=> AD = BC and m∠DAX = m∠BCX

because m∠DAX = m∠BCX => AD//BC

ABCD has AD = BC and AD//BC => ABCD is a parallelogram

Step-by-step explanation:

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The ratio of the distance between the foci and the length of the major axis is called eccentricity.

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2 years ago

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natka813 [3]

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2 years ago

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Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle: A(−2, 1), B(3, 1), C(3, 4),

Lynna [10]

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Step-by-step explanation:

8 0

2 years ago

Solve for the missing angle. Round to the nearest hundredth. 18 ? 13 ? = degrees

skad [1K]

Answer:

$\theta \:=43.76^{\circ \:\:}$

Step-by-step explanation:

The right triangle has the hypotenuse = 18

Let 'Ф' be the missing angle

we know that

cos Ф = adjacent/hypotenuse

Here,

The adjacent to Ф = 13

The hypotenuse = 18

cos Ф = adjacent/hypotenuse

$cos\:\theta \:=\frac{13}{18}$

$\theta \:=\cos ^{-1}\left(\frac{13}{18}\right)$

$=43.76^{\circ \:}$

Therefore, the missing angle is:

$\theta \:=43.76^{\circ \:\:}$

8 0

3 years ago

Sarah works as a tutor helping out after school. She earns $10 for an hour of tutoring plus an additional $4.50 per student. How

ipn [44]

37=10+4.50x
x=number of students needed to make $37
37=10+4.50x
-10 -10
27=4.50x
/4.50 /4.50
6=x

She needs to 6 students to make $37 for an hour.

Hope it helps!

4 0

3 years ago